Headstrap of a headgear assembly



FIG. 1 is a perspective view of a headstrap of a headgear assembly oriented in a vertical plane;

FIG. 2 is a front elevational view of the headstrap of FIG. 1, the rear elevational view being identical to the view of FIG. 2;

FIG. 3 is a top elevational view of the headstrap of FIG. 1;

FIG. 4 is a bottom elevational view of the headstrap of FIG. 1; and,

FIG. 5 is a left side elevational view of the headstrap of FIG. 1, the right side elevational view being identical to the view of FIG. 5. 

CLAIM The ornamental design for a headstrap of a headgear assembly, as shown and described. 